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The Wireless World Indoors The Wireless World Indoors 1 Confidential

Wideband Active DAS Engineering Principles and Practices

1

The Wireless World Indoors Confidential 2

CONVERGED SERVICES ON WIDEBAND ARCHITECTURE

TOTALY ACTIVE – TRULY WIDEBAND

Commercial Services Public Safety

Precise DL/UL Control End to End Monitoring

Max Coverage & Speed Interference Protection

Lowest Cost Precise Controls


Wideband Active DAS

Single Layer Fiber Architecture

– ALL Bands /Technologies

Long Distance - 1700meters (SM)

GSM,LTE,UMTS, CDMA, LMR 450,700, 800,AWS,1900,

Voice & Data

All Technologies 2G,

3G.4G,

150MHz – 2700MHz

Wideband Remote Units


ALTERNATIVE DAS SYSTEMS: HYBRID DAS

WB Primary Hub WB Secondary Hub WB Remote Unit

Zinwave Active Wideband DAS

Total Active DAS for Best UL Performance & Maximum DL Optimization Control

WB Antenna

•  Zinwave System – All Bands •  Hybrid System - Cards needed per RF band

Master Unit

Hybrid DAS solutions

•  Zinwave – Total Active Control to Antenna •  Hybrid – Mix of Fiber – Coax / Splitter

Remote Units


ZINWAVE 3000 SYSTEM COMPONENTS - 150MHZ -2700 MHZ Hubs Chassis

•  Primary or Secondary

•  4 RF service modules

•  8 Fibre link modules

Remote Unit

•  150 – 2700MHz

•  +20 dBm

•  Fibre

Rack-moun t Central PSU

CAT-5 cable

EIAJ5cable(1.5m)

48VDC Output

Remote Power

•  Ethernet Cable

•  All Pairs


ZINWAVE SINGLE MODE / MULTI MODE CAPABILITY

•  SC Connectors are used in both Hub Fiber Module and the Remote Unit – Fiber Connector

•  Photo-Diode Receiver uses SC – PC connector on the receive

•  Laser Transmitter uses SC-APC connector

This connection methodology enables ZW to use either Multi Mode or Single Mode infrastructure •  Optical Link Budget = 5dBo

•  Multi-Mode Distance Limitations approximately 550M per connection

•  Single Mode Distance Limitations approximately 1700M depending on patch panel losses

Select appropriate Zinwave patch cord for simple interface to SM

or MM patch panel


SINGLE, DOUBLE STAR OR MIXED ARCHITECTURE Base Station Inputs

Primary Hub

Secondary Hub


Double Star System Architecture

• Up to 8 Secondary Hubs per primary hub:fiber Connection

• Up to 8 Remote Units per secondary hub

• Max 64 Remote Units per Primary hub


ZINWAVE 3000 ELEMENT MANAGEMENT SYSTEM (EMS)

•  System Configuration and Control

•  Intuitive web based GUI

•  SNMP interface from the Primary Hub, for integration into higher level NMS systems

•  Separate user classes and secure communication via SSH/SSL and secure SNMP v3

•  Event recording and data logging.

•  Web Access:

•  view and manage your DAS systems from wherever you are

•  no management system controller unit •  no management software to install on client pc •  access through standard web browser


VOICE AND DATA SERVICES

WITH

QUALITY AND PERFORMANCE

One solution, One system for all your wireless needs…


Designed IN - Interference Protection

DAS Downlink

DAS Uplink (e.g. 10dB gain)

Service input

Service output

-10dBm

+20 dBm

40dB isolation

-20 dBm

•  Linearity • Wideband means 2nd Order dominates

• 2nd Order IMs far below FCC Limit

• 3rd Order IMs Un-measurable

• 5W Amplifier backed off to +20 dBm (100 mW) Composite

• Isolation • >40dB throughout the system including

antenna

-115 dBm/Hz D/L – 40dB Isolation = -155dBm/Hz noise to UL noise level


Precise Controls with SW Controlled SWITCH MATRIX

Inputs (Rear)

Out

puts

(fro

nt)

1

2 3

4

5

6

7 ü

ü

B C D A

ü

8


PARTITIONED MULTI-OPERATOR AND PUBLIC SAFETY

4x4 Dist.

Matrix

Hub Verizon

AT&T

RU

RU

RU

RU

RU

RU

RU

RU

Best Practices

•  Cellular services using > 696MHz Antenna(s) and US Conditioning

or High Pass Filter

•  Low frequency public safety

UHF

Sprint


General DAS RF Planning Considerations

•  Propagation through space, walls, and coax Varies by Frequency

•  Voice , Data Service have varying coverage / SNR requirements

KEY RF DESIGN CONSIDERATIONS

Wideband RF planning for Converged Services

•  Zinwave provides +20dBm consistently at every antenna point

•  Use the power of Zinwave’s power ratio’ing capability and Zinwave Coverage Calculator to establish the appropriate power per service/channel to meet all requirements above


Multi-Service Performance without Total Active Control

Example of Hybrid DAS system with dedicated amplifiers per frequency to coaxial distribution 6db+ to high freq.

High Frequency Low Frequency Data Requirements =

-72dBm

Voice Requirements = -95dBm

•  Signal degradation over coax distribution differs by

frequency

•  Signal degradation through buildings differs by

frequency

•  Available Power is affected by Channel #’s per service

Master Unit

Hybrid DAS solutions


ZINWAVE POWER RATIO CALCULATIONS

Channels/ Technologies

Budgetary Estimator Set RF Environment Available PWR


KEY DESIGN PARAMATERS

Set Minimum Quality Thresholds by Service/Technology

Enter these Power per Channel values as Signal Generator in IBWAV


2

8dBm 16dBm 8dBm

LMR 900 :CDMA 800 CDMA1900

-2.3dBm 8.9dBm 16.4dBm

Wideband Active DAS •  Precise Power per Antenna/Services

1900MHz 800MHz


Key Points to Consider in Total Active Design

1.  DL •  Total Active + 20dBm DL Power is Power at the Antenna

•  Power per channel is consistent at every antenna •  Power Density is a function of RU/antenna density –no limits

2.  UL •  Total Active – Noise Floor is near 20-22db

•  Hybrid NF is function of combining/coax/splitting loss 30+db •  NF is consistent

3.  LTE MIMO requires SNR of >22db on UL & DL (Uplink Matters)

The Wireless World Indoors Confidential 20 20 The Wireless World Indoors

MIMO DESIGNS

One solution, One system for all your wireless needs…


ZINWAVE: FULL MIMO: MULTIPLE INPUT MULTIPLE OUTPUT

MIMO eNodeB

A

B

Primary Hub

Secondary Hub 1

Secondary Hub 2

RU 1

RU 2

~2M @ 2.6GHz

TX

TX RX

RX

The MIMO architecture shown above can support up to 32 antenna locations per primary hub and up to 4 MIMO streams (although only 2, A and B, are shown). If more

MIMO signals are required or more than 32 antenna locations per primary hub are required then an alternative architecture can be deployed.


FULL MIMO REMOTE UNIT CONFIGURATION

40dB

A

B


MIMO LTE AND SISO CDMA ON SHARED ARCHITECTURE

CDMA 1900

CDMA 800

700 LTE A

700 LTE B

SW Defined Paths – Independent UL/DL Control


MIMO STADIUM DESIGN – LTE A & CELL 10DB ABOVE MACRO


INTERLEAVED MIMO LTE and

cellular SISO

LTE MIMO overlay

7 x

4 x

Interleaved MIMO •  Second Set of LTE antennas and

remote units are deployed to provide overlapping or interleaved LTE

coverage. •  Interleaved MIMO fit in between

existing remote units. •  Edge of Overlay coincides

with centre of SISO .


ZINWAVE DL CALCULATOR FOR IBWAV

Enter Channels/ Technologies

Budgetary Estimator Set RF Environment Set Backoff *

Choose Antenna Gain


KEY DESIGN PARAMATERS

Set Minimum Quality Thresholds by Service/Technology

Enter these Power per Channel values as a Signal Generator in IBWAV

Set all components to 0db gain/loss

If after running IBWAV you see a particular service requiring more power than Calculator 1st

estimate – add Link Loss and Recalculate


ZINWAVE DESIGN PLAN


• Future Proof

• Wideband Architecture 150 – 2700 MHz

• No Change out for future frequency changes or additions

• Allocate reserve power budget for future adds

• Performance

• Designed to Safely support wideband RF Distribution

• Fully Active system for best coverage & quality

• Designed in Intermod Protection

• NO PIM ISSUES – Totally Active

• Economics

• Single set of components – Multiple Services- All Frequencies

WIDEBAND ACTIVE DAS FOR CONVERGED SERVICES

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